internal override void PrepareUI()
{
if (this.Owner == null || !this.IsTemplateApplied)
{
return;
}
this.Container.Owner = this.Owner.Owner;
for (int i = 0; i < this.Owner.Owner.GroupDescriptors.Count; i++)
{
GroupDescriptorBase descriptor = this.Owner.Owner.GroupDescriptors[i];
DataGridFlyoutGroupHeader header = new DataGridFlyoutGroupHeader();
this.SetupDragDropProperties(header, i);
header.DataContext = descriptor;
header.CloseButtonClick += this.Owner.HandleGroupFlyoutHeaderClosed;
header.DragSurfaceRequested += this.HandleDragSurfaceRequested;
header.DescriptorContentTap += this.Owner.HandleGroupFlyoutDescriptorContentTap;
header.ParentGrid = this.Owner.Owner;
this.Container.Elements.Add(header);
}
int childCount = this.Container.Elements.Count;
if (childCount > 0)
{
var lastHeader = this.Container.Elements[childCount - 1] as DataGridFlyoutGroupHeader;
lastHeader.BottomGlyphOpacity = 0.0;
}
}
/// <summary>
/// Creates an instance of the <see cref="DataGridFlyoutGroupHeader"/>.
/// </summary>
protected virtual DataGridFlyoutHeader CreateHeader()
{
DataGridFlyoutGroupHeader header = new DataGridFlyoutGroupHeader();
header.Width = this.ActualWidth;
header.BottomGlyphOpacity = 0.0;
header.OuterBorderVisibility = Visibility.Visible;
return(header);
}
